milbe28 milbe28

23-04-2024
Mathematics

contestada

he mean life of a television set is 141
months with a variance of 256
.

If a sample of 71
televisions is randomly selected, what is the probability that the sample mean would be less than 136.3
months? Round your answer to four decimal places.

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sj4537200 sj4537200

23-04-2024

Answer:

In a class of 72 students, the number of girls is 4/5 part of the number of boys. find the of girls in the class.

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